mordants

These coloured bodies are called "colour lakes," and the metallic compounds used in connection with their production "mordants," hence often the dye-stuffs applied by this method are termed "mordant dyes".

The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student Franklin Beech

By and by, however, it was found possible to render some of the dyes more permanent, probably in the first instance by the application of certain kinds of earth or mud, as we know to be practiced by the Maori dyers of to-day, and in this way, as it appears to me, the early dyers learnt the efficacy of what we now call "mordants," which I may briefly describe as fixing agents for coloring matters.

Scientific American Supplement, No. 810, July 11, 1891 Various

Printing on textiles with colored dyes to produce the ever-popular calico prints, for instance was even more challenging—requiring thickeners, mordants, and solvents in multiple steps—and often took the dyers weeks to complete.

The Emperor of All Maladies Siddhartha Mukherjee 2010

Printing on textiles with colored dyes to produce the ever-popular calico prints, for instance was even more challenging—requiring thickeners, mordants, and solvents in multiple steps—and often took the dyers weeks to complete.

The Emperor of All Maladies Siddhartha Mukherjee 2010

Printing on textiles with colored dyes to produce the ever-popular calico prints, for instance was even more challenging—requiring thickeners, mordants, and solvents in multiple steps—and often took the dyers weeks to complete.

The Emperor of All Maladies Siddhartha Mukherjee 2010

Midnightsky uses both chemical and natural dyes and uses Earth-friendly mordants.

Yearn Worthy Yarn: Midnight Sky Fibers 2009

They sold dung of all kinds to be spread on the fields; they sold urine to dyers for use as mordants, according to complicated recipes, such as the one that called for the piss of drunkards during a full Moon.

Wildfire Sarah Micklem 2009

They sold dung of all kinds to be spread on the fields; they sold urine to dyers for use as mordants, according to complicated recipes, such as the one that called for the piss of drunkards during a full Moon.

Wildfire Sarah Micklem 2009

They sold dung of all kinds to be spread on the fields; they sold urine to dyers for use as mordants, according to complicated recipes, such as the one that called for the piss of drunkards during a full Moon.

Wildfire Sarah Micklem 2009

“We reuse a lot of the water in the dyeing and spinning process and we make every effort to use dyes and mordants that are not harmful to humans, animals, plants or Earth.”

Yearn Worthy Yarn: Midnight Sky Fibers 2009